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Finding the Fourth Proportional to 348.09, 521.77 and 116.90

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Solution

The fourth proportional to 348.09, 521.77 and 116.90 is: 175.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.09 : 521.77 = 116.90 : x
  2. Step 2: Convert to fraction form
    348.09/521.77 = 116.90/x
  3. Step 3: Cross multiply
    348.09x = 521.77 × 116.90
  4. Step 4: Simplify right side
    348.09x = 60,993.77
  5. Step 5: Solve for x
    x = 60,993.77/348.09
  6. Step 6: Final answer
    x = 175.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.